Home / 8,343.81-11,514.56-4,990.41

Finding the Fourth Proportional to 8,343.81, 11,514.56 and 4,990.41

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Solution

The fourth proportional to 8,343.81, 11,514.56 and 4,990.41 is: 6,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.81 : 11,514.56 = 4,990.41 : x
  2. Step 2: Convert to fraction form
    8,343.81/11,514.56 = 4,990.41/x
  3. Step 3: Cross multiply
    8,343.81x = 11,514.56 × 4,990.41
  4. Step 4: Simplify right side
    8,343.81x = 57,462,350.42
  5. Step 5: Solve for x
    x = 57,462,350.42/8,343.81
  6. Step 6: Final answer
    x = 6,886.82

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Half scale
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Double scale
Find fourth proportional to 8,344.81, 11,515.94 and 4,991.41
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.